package thread5.TEST;

public class test3 {
    public static void main(String[] args) {
        int a = 0;
        for (int i = 0; i < 3; i++) {//i、b的生命都只在此循环的{}里面
            int b = 2;//每循环一次都创建一次b、销毁一次b？
            b++;
            System.out.println(b);
        }
//        while (c == 10) {
            int c = 10;
    }
        /*i = 20;
        b = 20;*/
}
